We are currently at a rate of 3417000 damage per hour and need the rate to be 5952000 to even get a billion. Its not in ranked or even normal trios or duos making this challenge practically impossible. This doesn't even include the fact that we would need to make up the 2535000 that we missed.

Whoever made this challenge must have thought this mode was the second coming of christ if they thought that many people would play it.